update zh-cn/device-dev/reference/hdi-apis/_expand_dims.md.

Signed-off-by: Nli-yan339 <liyan339@h-partners.com>
Signed-off-by: Nliyan <liyan339@h-partners.com>

zh-cn/device-dev/reference/hdi-apis/_expand_dims.md

@@ -18,9 +18,13 @@
 - output，给定轴上添加了额外额度的算子。
 
 **Since:**
+
 3.2
+
 **Version:**
+
 1.0
+
 **相关模块:**
 
 [NNRt](_n_n_rt.md)